Researchers at Purdue University have demonstrated an ionic wind engine that promises to reduce the heat generated by semiconductors at a substantially faster rate than is possible with traditional cooling technologies.
The experimental cooling device consists of an anode, a wire with a positive charge, positioned 10 millimeters above an array of cathodes, which are negatively charged. As current runs through the device, the cathodes discharge electrons towards the anode. When these electrons collide with molecules in the air, they produce ions with a positive charge that are drawn back to the cathodes, creating an ionic wind that increases airflow on the surface of a mock chip.
The ability to increase airflow on the surface of the chip allows it to cool faster. Conventional cooling devices are limited by the fact that air molecules closest to the surface do not move, and molecules move progressively faster the further away they are from the surface, Purdue said.
Source: pcworld.com
Tags: airflow | CHIP | demonstrated | discharge electrons | experimental device | faster | ionic | IONS | molecules | Purdue University | RESEARCHERS
No comments:
Post a Comment